*{
	margin: 0;
	padding: 0;
}
#slide{
	width: 480px;
	height: 200px;
	margin: 40px auto;
	/*border: 3px solid blueviolet;*/
	position: relative;
	perspective: 400px;
}
#slide ul li{
	width: 30px;
	height: 200px;
	/*background-color: yellow;*/
	float: left;
	list-style: none;
	position: relative;
	/*3D*/
	transform-style: preserve-3d;
	transform: rotateX(0deg);
	transform-origin: center center -100px;
}
#slide ul li a{
	width: 100%;
	height: 100%;
	display: block;
	position: absolute;
	left: 0px;
	top: 0px;
	/*元素背对屏幕不现实*/
	backface-visibility: hidden;
	/*火狐*/
	-moz-backface-visibility: hidden;
	/*谷歌*/
	-webkit-backface-visibility: hidden;
	/*IE*/
	-ms-backface-visibility: hidden;
}

#slide ul li a:nth-child(2){
	top: -200px;
	transform-origin: bottom;
	transform: rotateX(90deg);
}
#slide ul li a:nth-child(3){
	transform: translateZ(-200px) rotateX(180deg);
}
#slide ul li a:nth-child(4){
	top: 200px;
	transform-origin: top;
	transform: rotateX(-90deg);
}

#slide nav{
	position: absolute;
	right: 0px;
	bottom: 10px;
	z-index: 1111;
}
#slide nav a{
	display: inline-block;
	text-decoration: none;
	width: 25px;
	height: 25px;
	background-color: #999999;
	border-radius: 50%;
	margin-right: 10px;
	text-align: center;
	line-height: 25px;
	font-size: 14px;
	color: #FFFFFF;
}
#slide nav a:nth-child(1){
	background-color: red;
}
